• Shimano Ultegra 6800 Bottom Bracket

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        • $16.99 16.99
        • RRP $23.99
        • Save 29%
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      Italian Thread
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Shimano Ultegra 6800 Bottom Bracket

The Shimano Ultegra 6800 bottom bracket has been reduced in size, and shaves 14g off of the 6700 version.


  • HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
  • HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
  • Use TLFC37 or TLFC25 in conjunction with TLFC36 adaptor tool for installation and removal
  • Compatible with all Shimano Hollowtech II road cranks
  • New sealing system reduced drag by 50%


  • Recommended Use: Road cycling and racing
  • Material: Aluminium cups and Steel Bearings
  • Shell Type: Extrernal
  • Thread: English/Italian
  • Shell Width: 68mm (Eng)/70mm (Ita)
  • Weight: 77g

A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery cost $9.99
  • Delivery toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by Bank Transfer, PayPal or Card


  • Colour: Black
  • Size: 68mm, 70mm
  • Option: English Thread, Italian Thread

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Bottom Brackets Buying Guide

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